/Engine/Plugins/Web/HttpBlueprint/Source/HttpBlueprint/Public/HttpBlueprintFunctionLibrary.h
Returns all of the headers and their values by value
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, Category="Http") static [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > GetAllHeaders ( const [FHttpHeader](API\Plugins\HttpBlueprint\FHttpHeader) & HeaderObject )